In this paper we propose a new framework for utilizing frequency information from the short-term power spectrum of speech. Feature extraction is based on the cepstral coefficients derived from the histograms of subband spectral centroids (SSC). Two new feature extraction algorithms are proposed, one based on frequency information alone, and the other which efficiently combines the frequency and...

A set of features is evaluated for recognition of musical instruments out of monophonic musical signals. Aiming to achieve a compact representation, the adopted features regard only spectral characteristics of sound and are limited in number. On top of these descriptors, various classification methods are implemented and tested. Over a dataset of 1007 tones from 27 musical instruments, support ...

The formulation of quantum dynamical time correlation functions is examined within the context of the path centroid variable in Feynman path integration. This study builds on the centroid-based approach to equilibrium properties developed in the companion paper. The introduction of the centroid perspective into the calculation of real time position correlation functions is outlined and an intri...

There is enormous amount information available in different forms of sources and genres. In order to extract useful from a massive data, automatic mechanism required. The text summarization systems assist with content reduction keeping the important filtering non-important parts text. Good document representation really get relevant information. Bag-of-words cannot give word similarity on synta...

In the title complex, [CuCl(2)(C(12)H(12)N(2)O)], the Cu(II) ion is coordinated in a distorted trigonal-bipyramidal environment. In the crystal structure, there is a weak π-π stacking inter-action between symmetry-related pyridine rings, with a centroid-to-centroid distance of 3.8134 (17) Å. In addition, there is relatively close contact between the pyridine ring π-system and a symmetry-related...